projects / openwrt / openwrt.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
mvsw61xx: add support for MV88E6352
[openwrt/openwrt.git] / target / linux / generic / files / drivers / net / phy / mvsw61xx.c
1 /*
2 * Marvell 88E61xx switch driver
3 *
4 * Copyright (c) 2014 Claudio Leite <leitec@staticky.com>
5 * Copyright (c) 2014 Nikita Nazarenko <nnazarenko@radiofid.com>
6 *
7 * Based on code (c) 2008 Felix Fietkau <nbd@nbd.name>
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License v2 as published by the
11 * Free Software Foundation
12 */
13
14 #include <linux/kernel.h>
15 #include <linux/module.h>
16 #include <linux/init.h>
17 #include <linux/list.h>
18 #include <linux/mii.h>
19 #include <linux/phy.h>
20 #include <linux/of.h>
21 #include <linux/of_mdio.h>
22 #include <linux/delay.h>
23 #include <linux/switch.h>
24 #include <linux/device.h>
25 #include <linux/platform_device.h>
26
27 #include "mvsw61xx.h"
28
29 MODULE_DESCRIPTION("Marvell 88E61xx Switch driver");
30 MODULE_AUTHOR("Claudio Leite <leitec@staticky.com>");
31 MODULE_AUTHOR("Nikita Nazarenko <nnazarenko@radiofid.com>");
32 MODULE_LICENSE("GPL v2");
33 MODULE_ALIAS("platform:mvsw61xx");
34
35 /*
36 * Register access is done through direct or indirect addressing,
37 * depending on how the switch is physically connected.
38 *
39 * Direct addressing: all port and global registers directly
40 * accessible via an address/register pair
41 *
42 * Indirect addressing: switch is mapped at a single address,
43 * port and global registers accessible via a single command/data
44 * register pair
45 */
46
47 static int
48 mvsw61xx_wait_mask_raw(struct mii_bus *bus, int addr,
49 int reg, u16 mask, u16 val)
50 {
51 int i = 100;
52 u16 r;
53
54 do {
55 r = bus->read(bus, addr, reg);
56 if ((r & mask) == val)
57 return 0;
58 } while (--i > 0);
59
60 return -ETIMEDOUT;
61 }
62
63 static u16
64 r16(struct mii_bus *bus, bool indirect, int base_addr, int addr, int reg)
65 {
66 u16 ind_addr;
67
68 if (!indirect)
69 return bus->read(bus, addr, reg);
70
71 /* Indirect read: First, make sure switch is free */
72 mvsw61xx_wait_mask_raw(bus, base_addr, MV_INDIRECT_REG_CMD,
73 MV_INDIRECT_INPROGRESS, 0);
74
75 /* Load address and request read */
76 ind_addr = MV_INDIRECT_READ | (addr << MV_INDIRECT_ADDR_S) | reg;
77 bus->write(bus, base_addr, MV_INDIRECT_REG_CMD,
78 ind_addr);
79
80 /* Wait until it's ready */
81 mvsw61xx_wait_mask_raw(bus, base_addr, MV_INDIRECT_REG_CMD,
82 MV_INDIRECT_INPROGRESS, 0);
83
84 /* Read the requested data */
85 return bus->read(bus, base_addr, MV_INDIRECT_REG_DATA);
86 }
87
88 static void
89 w16(struct mii_bus *bus, bool indirect, int base_addr, int addr,
90 int reg, u16 val)
91 {
92 u16 ind_addr;
93
94 if (!indirect) {
95 bus->write(bus, addr, reg, val);
96 return;
97 }
98
99 /* Indirect write: First, make sure switch is free */
100 mvsw61xx_wait_mask_raw(bus, base_addr, MV_INDIRECT_REG_CMD,
101 MV_INDIRECT_INPROGRESS, 0);
102
103 /* Load the data to be written */
104 bus->write(bus, base_addr, MV_INDIRECT_REG_DATA, val);
105
106 /* Wait again for switch to be free */
107 mvsw61xx_wait_mask_raw(bus, base_addr, MV_INDIRECT_REG_CMD,
108 MV_INDIRECT_INPROGRESS, 0);
109
110 /* Load address, and issue write command */
111 ind_addr = MV_INDIRECT_WRITE | (addr << MV_INDIRECT_ADDR_S) | reg;
112 bus->write(bus, base_addr, MV_INDIRECT_REG_CMD,
113 ind_addr);
114 }
115
116 /* swconfig support */
117
118 static inline u16
119 sr16(struct switch_dev *dev, int addr, int reg)
120 {
121 struct mvsw61xx_state *state = get_state(dev);
122
123 return r16(state->bus, state->is_indirect, state->base_addr, addr, reg);
124 }
125
126 static inline void
127 sw16(struct switch_dev *dev, int addr, int reg, u16 val)
128 {
129 struct mvsw61xx_state *state = get_state(dev);
130
131 w16(state->bus, state->is_indirect, state->base_addr, addr, reg, val);
132 }
133
134 static int
135 mvsw61xx_wait_mask_s(struct switch_dev *dev, int addr,
136 int reg, u16 mask, u16 val)
137 {
138 int i = 100;
139 u16 r;
140
141 do {
142 r = sr16(dev, addr, reg) & mask;
143 if (r == val)
144 return 0;
145 } while (--i > 0);
146
147 return -ETIMEDOUT;
148 }
149
150 static int
151 mvsw61xx_mdio_read(struct switch_dev *dev, int addr, int reg)
152 {
153 sw16(dev, MV_GLOBAL2REG(SMI_OP),
154 MV_INDIRECT_READ | (addr << MV_INDIRECT_ADDR_S) | reg);
155
156 if (mvsw61xx_wait_mask_s(dev, MV_GLOBAL2REG(SMI_OP),
157 MV_INDIRECT_INPROGRESS, 0) < 0)
158 return -ETIMEDOUT;
159
160 return sr16(dev, MV_GLOBAL2REG(SMI_DATA));
161 }
162
163 static int
164 mvsw61xx_mdio_write(struct switch_dev *dev, int addr, int reg, u16 val)
165 {
166 sw16(dev, MV_GLOBAL2REG(SMI_DATA), val);
167
168 sw16(dev, MV_GLOBAL2REG(SMI_OP),
169 MV_INDIRECT_WRITE | (addr << MV_INDIRECT_ADDR_S) | reg);
170
171 return mvsw61xx_wait_mask_s(dev, MV_GLOBAL2REG(SMI_OP),
172 MV_INDIRECT_INPROGRESS, 0) < 0;
173 }
174
175 static int
176 mvsw61xx_mdio_page_read(struct switch_dev *dev, int port, int page, int reg)
177 {
178 int ret;
179
180 mvsw61xx_mdio_write(dev, port, MII_MV_PAGE, page);
181 ret = mvsw61xx_mdio_read(dev, port, reg);
182 mvsw61xx_mdio_write(dev, port, MII_MV_PAGE, 0);
183
184 return ret;
185 }
186
187 static void
188 mvsw61xx_mdio_page_write(struct switch_dev *dev, int port, int page, int reg,
189 u16 val)
190 {
191 mvsw61xx_mdio_write(dev, port, MII_MV_PAGE, page);
192 mvsw61xx_mdio_write(dev, port, reg, val);
193 mvsw61xx_mdio_write(dev, port, MII_MV_PAGE, 0);
194 }
195
196 static int
197 mvsw61xx_get_port_mask(struct switch_dev *dev,
198 const struct switch_attr *attr, struct switch_val *val)
199 {
200 struct mvsw61xx_state *state = get_state(dev);
201 char *buf = state->buf;
202 int port, len, i;
203 u16 reg;
204
205 port = val->port_vlan;
206 reg = sr16(dev, MV_PORTREG(VLANMAP, port)) & MV_PORTS_MASK;
207
208 len = sprintf(buf, "0x%04x: ", reg);
209
210 for (i = 0; i < MV_PORTS; i++) {
211 if (reg & (1 << i))
212 len += sprintf(buf + len, "%d ", i);
213 else if (i == port)
214 len += sprintf(buf + len, "(%d) ", i);
215 }
216
217 val->value.s = buf;
218
219 return 0;
220 }
221
222 static int
223 mvsw61xx_get_port_qmode(struct switch_dev *dev,
224 const struct switch_attr *attr, struct switch_val *val)
225 {
226 struct mvsw61xx_state *state = get_state(dev);
227
228 val->value.i = state->ports[val->port_vlan].qmode;
229
230 return 0;
231 }
232
233 static int
234 mvsw61xx_set_port_qmode(struct switch_dev *dev,
235 const struct switch_attr *attr, struct switch_val *val)
236 {
237 struct mvsw61xx_state *state = get_state(dev);
238
239 state->ports[val->port_vlan].qmode = val->value.i;
240
241 return 0;
242 }
243
244 static int
245 mvsw61xx_get_port_pvid(struct switch_dev *dev, int port, int *val)
246 {
247 struct mvsw61xx_state *state = get_state(dev);
248
249 *val = state->ports[port].pvid;
250
251 return 0;
252 }
253
254 static int
255 mvsw61xx_set_port_pvid(struct switch_dev *dev, int port, int val)
256 {
257 struct mvsw61xx_state *state = get_state(dev);
258
259 if (val < 0 || val >= MV_VLANS)
260 return -EINVAL;
261
262 state->ports[port].pvid = (u16)val;
263
264 return 0;
265 }
266
267 static int
268 mvsw61xx_get_port_link(struct switch_dev *dev, int port,
269 struct switch_port_link *link)
270 {
271 u16 status, speed;
272
273 status = sr16(dev, MV_PORTREG(STATUS, port));
274
275 link->link = status & MV_PORT_STATUS_LINK;
276 if (!link->link)
277 return 0;
278
279 link->duplex = status & MV_PORT_STATUS_FDX;
280
281 speed = (status & MV_PORT_STATUS_SPEED_MASK) >>
282 MV_PORT_STATUS_SPEED_SHIFT;
283
284 switch (speed) {
285 case MV_PORT_STATUS_SPEED_10:
286 link->speed = SWITCH_PORT_SPEED_10;
287 break;
288 case MV_PORT_STATUS_SPEED_100:
289 link->speed = SWITCH_PORT_SPEED_100;
290 break;
291 case MV_PORT_STATUS_SPEED_1000:
292 link->speed = SWITCH_PORT_SPEED_1000;
293 break;
294 }
295
296 return 0;
297 }
298
299 static int mvsw61xx_get_vlan_ports(struct switch_dev *dev,
300 struct switch_val *val)
301 {
302 struct mvsw61xx_state *state = get_state(dev);
303 int i, j, mode, vno;
304
305 vno = val->port_vlan;
306
307 if (vno <= 0 || vno >= dev->vlans)
308 return -EINVAL;
309
310 for (i = 0, j = 0; i < dev->ports; i++) {
311 if (state->vlans[vno].mask & (1 << i)) {
312 val->value.ports[j].id = i;
313
314 mode = (state->vlans[vno].port_mode >> (i * 4)) & 0xf;
315 if (mode == MV_VTUCTL_EGRESS_TAGGED)
316 val->value.ports[j].flags =
317 (1 << SWITCH_PORT_FLAG_TAGGED);
318 else
319 val->value.ports[j].flags = 0;
320
321 j++;
322 }
323 }
324
325 val->len = j;
326
327 return 0;
328 }
329
330 static int mvsw61xx_set_vlan_ports(struct switch_dev *dev,
331 struct switch_val *val)
332 {
333 struct mvsw61xx_state *state = get_state(dev);
334 int i, mode, pno, vno;
335
336 vno = val->port_vlan;
337
338 if (vno <= 0 || vno >= dev->vlans)
339 return -EINVAL;
340
341 state->vlans[vno].mask = 0;
342 state->vlans[vno].port_mode = 0;
343 state->vlans[vno].port_sstate = 0;
344
345 if(state->vlans[vno].vid == 0)
346 state->vlans[vno].vid = vno;
347
348 for (i = 0; i < val->len; i++) {
349 pno = val->value.ports[i].id;
350
351 state->vlans[vno].mask |= (1 << pno);
352 if (val->value.ports[i].flags &
353 (1 << SWITCH_PORT_FLAG_TAGGED))
354 mode = MV_VTUCTL_EGRESS_TAGGED;
355 else
356 mode = MV_VTUCTL_EGRESS_UNTAGGED;
357
358 state->vlans[vno].port_mode |= mode << (pno * 4);
359 state->vlans[vno].port_sstate |=
360 MV_STUCTL_STATE_FORWARDING << (pno * 4 + 2);
361 }
362
363 /*
364 * DISCARD is nonzero, so it must be explicitly
365 * set on ports not in the VLAN.
366 */
367 for (i = 0; i < dev->ports; i++)
368 if (!(state->vlans[vno].mask & (1 << i)))
369 state->vlans[vno].port_mode |=
370 MV_VTUCTL_DISCARD << (i * 4);
371
372 return 0;
373 }
374
375 static int mvsw61xx_get_vlan_port_based(struct switch_dev *dev,
376 const struct switch_attr *attr, struct switch_val *val)
377 {
378 struct mvsw61xx_state *state = get_state(dev);
379 int vno = val->port_vlan;
380
381 if (vno <= 0 || vno >= dev->vlans)
382 return -EINVAL;
383
384 if (state->vlans[vno].port_based)
385 val->value.i = 1;
386 else
387 val->value.i = 0;
388
389 return 0;
390 }
391
392 static int mvsw61xx_set_vlan_port_based(struct switch_dev *dev,
393 const struct switch_attr *attr, struct switch_val *val)
394 {
395 struct mvsw61xx_state *state = get_state(dev);
396 int vno = val->port_vlan;
397
398 if (vno <= 0 || vno >= dev->vlans)
399 return -EINVAL;
400
401 if (val->value.i == 1)
402 state->vlans[vno].port_based = true;
403 else
404 state->vlans[vno].port_based = false;
405
406 return 0;
407 }
408
409 static int mvsw61xx_get_vid(struct switch_dev *dev,
410 const struct switch_attr *attr, struct switch_val *val)
411 {
412 struct mvsw61xx_state *state = get_state(dev);
413 int vno = val->port_vlan;
414
415 if (vno <= 0 || vno >= dev->vlans)
416 return -EINVAL;
417
418 val->value.i = state->vlans[vno].vid;
419
420 return 0;
421 }
422
423 static int mvsw61xx_set_vid(struct switch_dev *dev,
424 const struct switch_attr *attr, struct switch_val *val)
425 {
426 struct mvsw61xx_state *state = get_state(dev);
427 int vno = val->port_vlan;
428
429 if (vno <= 0 || vno >= dev->vlans)
430 return -EINVAL;
431
432 state->vlans[vno].vid = val->value.i;
433
434 return 0;
435 }
436
437 static int mvsw61xx_get_enable_vlan(struct switch_dev *dev,
438 const struct switch_attr *attr, struct switch_val *val)
439 {
440 struct mvsw61xx_state *state = get_state(dev);
441
442 val->value.i = state->vlan_enabled;
443
444 return 0;
445 }
446
447 static int mvsw61xx_set_enable_vlan(struct switch_dev *dev,
448 const struct switch_attr *attr, struct switch_val *val)
449 {
450 struct mvsw61xx_state *state = get_state(dev);
451
452 state->vlan_enabled = val->value.i;
453
454 return 0;
455 }
456
457 static int mvsw61xx_vtu_program(struct switch_dev *dev)
458 {
459 struct mvsw61xx_state *state = get_state(dev);
460 u16 v1, v2, s1, s2;
461 int i;
462
463 /* Flush */
464 mvsw61xx_wait_mask_s(dev, MV_GLOBALREG(VTU_OP),
465 MV_VTUOP_INPROGRESS, 0);
466 sw16(dev, MV_GLOBALREG(VTU_OP),
467 MV_VTUOP_INPROGRESS | MV_VTUOP_PURGE);
468
469 /* Write VLAN table */
470 for (i = 1; i < dev->vlans; i++) {
471 if (state->vlans[i].mask == 0 ||
472 state->vlans[i].vid == 0 ||
473 state->vlans[i].port_based == true)
474 continue;
475
476 mvsw61xx_wait_mask_s(dev, MV_GLOBALREG(VTU_OP),
477 MV_VTUOP_INPROGRESS, 0);
478
479 /* Write per-VLAN port state into STU */
480 s1 = (u16) (state->vlans[i].port_sstate & 0xffff);
481 s2 = (u16) ((state->vlans[i].port_sstate >> 16) & 0xffff);
482
483 sw16(dev, MV_GLOBALREG(VTU_VID), MV_VTU_VID_VALID);
484 sw16(dev, MV_GLOBALREG(VTU_SID), i);
485 sw16(dev, MV_GLOBALREG(VTU_DATA1), s1);
486 sw16(dev, MV_GLOBALREG(VTU_DATA2), s2);
487 sw16(dev, MV_GLOBALREG(VTU_DATA3), 0);
488
489 sw16(dev, MV_GLOBALREG(VTU_OP),
490 MV_VTUOP_INPROGRESS | MV_VTUOP_STULOAD);
491 mvsw61xx_wait_mask_s(dev, MV_GLOBALREG(VTU_OP),
492 MV_VTUOP_INPROGRESS, 0);
493
494 /* Write VLAN information into VTU */
495 v1 = (u16) (state->vlans[i].port_mode & 0xffff);
496 v2 = (u16) ((state->vlans[i].port_mode >> 16) & 0xffff);
497
498 sw16(dev, MV_GLOBALREG(VTU_VID),
499 MV_VTU_VID_VALID | state->vlans[i].vid);
500 sw16(dev, MV_GLOBALREG(VTU_SID), i);
501 sw16(dev, MV_GLOBALREG(VTU_FID), i);
502 sw16(dev, MV_GLOBALREG(VTU_DATA1), v1);
503 sw16(dev, MV_GLOBALREG(VTU_DATA2), v2);
504 sw16(dev, MV_GLOBALREG(VTU_DATA3), 0);
505
506 sw16(dev, MV_GLOBALREG(VTU_OP),
507 MV_VTUOP_INPROGRESS | MV_VTUOP_LOAD);
508 mvsw61xx_wait_mask_s(dev, MV_GLOBALREG(VTU_OP),
509 MV_VTUOP_INPROGRESS, 0);
510 }
511
512 return 0;
513 }
514
515 static void mvsw61xx_vlan_port_config(struct switch_dev *dev, int vno)
516 {
517 struct mvsw61xx_state *state = get_state(dev);
518 int i, mode;
519
520 for (i = 0; i < dev->ports; i++) {
521 if (!(state->vlans[vno].mask & (1 << i)))
522 continue;
523
524 mode = (state->vlans[vno].port_mode >> (i * 4)) & 0xf;
525
526 if(mode != MV_VTUCTL_EGRESS_TAGGED)
527 state->ports[i].pvid = state->vlans[vno].vid;
528
529 if (state->vlans[vno].port_based) {
530 state->ports[i].mask |= state->vlans[vno].mask;
531 state->ports[i].fdb = vno;
532 }
533 else
534 state->ports[i].qmode = MV_8021Q_MODE_SECURE;
535 }
536 }
537
538 static int mvsw61xx_update_state(struct switch_dev *dev)
539 {
540 struct mvsw61xx_state *state = get_state(dev);
541 int i;
542 u16 reg;
543
544 if (!state->registered)
545 return -EINVAL;
546
547 /*
548 * Set 802.1q-only mode if vlan_enabled is true.
549 *
550 * Without this, even if 802.1q is enabled for
551 * a port/VLAN, it still depends on the port-based
552 * VLAN mask being set.
553 *
554 * With this setting, port-based VLANs are still
555 * functional, provided the VID is not in the VTU.
556 */
557 reg = sr16(dev, MV_GLOBAL2REG(SDET_POLARITY));
558
559 if (state->vlan_enabled)
560 reg |= MV_8021Q_VLAN_ONLY;
561 else
562 reg &= ~MV_8021Q_VLAN_ONLY;
563
564 sw16(dev, MV_GLOBAL2REG(SDET_POLARITY), reg);
565
566 /*
567 * Set port-based VLAN masks on each port
568 * based only on VLAN definitions known to
569 * the driver (i.e. in state).
570 *
571 * This means any pre-existing port mapping is
572 * wiped out once our driver is initialized.
573 */
574 for (i = 0; i < dev->ports; i++) {
575 state->ports[i].mask = 0;
576 state->ports[i].qmode = MV_8021Q_MODE_DISABLE;
577 }
578
579 for (i = 0; i < dev->vlans; i++)
580 mvsw61xx_vlan_port_config(dev, i);
581
582 for (i = 0; i < dev->ports; i++) {
583 reg = sr16(dev, MV_PORTREG(VLANID, i)) & ~MV_PVID_MASK;
584 reg |= state->ports[i].pvid;
585 sw16(dev, MV_PORTREG(VLANID, i), reg);
586
587 state->ports[i].mask &= ~(1 << i);
588
589 /* set default forwarding DB number and port mask */
590 reg = sr16(dev, MV_PORTREG(CONTROL1, i)) & ~MV_FDB_HI_MASK;
591 reg |= (state->ports[i].fdb >> MV_FDB_HI_SHIFT) &
592 MV_FDB_HI_MASK;
593 sw16(dev, MV_PORTREG(CONTROL1, i), reg);
594
595 reg = ((state->ports[i].fdb & 0xf) << MV_FDB_LO_SHIFT) |
596 state->ports[i].mask;
597 sw16(dev, MV_PORTREG(VLANMAP, i), reg);
598
599 reg = sr16(dev, MV_PORTREG(CONTROL2, i)) &
600 ~MV_8021Q_MODE_MASK;
601 reg |= state->ports[i].qmode << MV_8021Q_MODE_SHIFT;
602 sw16(dev, MV_PORTREG(CONTROL2, i), reg);
603 }
604
605 mvsw61xx_vtu_program(dev);
606
607 return 0;
608 }
609
610 static int mvsw61xx_apply(struct switch_dev *dev)
611 {
612 return mvsw61xx_update_state(dev);
613 }
614
615 static void mvsw61xx_enable_serdes(struct switch_dev *dev)
616 {
617 int bmcr = mvsw61xx_mdio_page_read(dev, MV_REG_FIBER_SERDES,
618 MV_PAGE_FIBER_SERDES, MII_BMCR);
619 if (bmcr < 0)
620 return;
621
622 if (bmcr & BMCR_PDOWN)
623 mvsw61xx_mdio_page_write(dev, MV_REG_FIBER_SERDES,
624 MV_PAGE_FIBER_SERDES, MII_BMCR,
625 bmcr & ~BMCR_PDOWN);
626 }
627
628 static int _mvsw61xx_reset(struct switch_dev *dev, bool full)
629 {
630 struct mvsw61xx_state *state = get_state(dev);
631 int i;
632 u16 reg;
633
634 /* Disable all ports before reset */
635 for (i = 0; i < dev->ports; i++) {
636 reg = sr16(dev, MV_PORTREG(CONTROL, i)) &
637 ~MV_PORTCTRL_FORWARDING;
638 sw16(dev, MV_PORTREG(CONTROL, i), reg);
639 }
640
641 reg = sr16(dev, MV_GLOBALREG(CONTROL)) | MV_CONTROL_RESET;
642
643 sw16(dev, MV_GLOBALREG(CONTROL), reg);
644 if (mvsw61xx_wait_mask_s(dev, MV_GLOBALREG(CONTROL),
645 MV_CONTROL_RESET, 0) < 0)
646 return -ETIMEDOUT;
647
648 for (i = 0; i < dev->ports; i++) {
649 state->ports[i].fdb = 0;
650 state->ports[i].qmode = 0;
651 state->ports[i].mask = 0;
652 state->ports[i].pvid = 0;
653
654 /* Force flow control off */
655 reg = sr16(dev, MV_PORTREG(PHYCTL, i)) & ~MV_PHYCTL_FC_MASK;
656 reg |= MV_PHYCTL_FC_DISABLE;
657 sw16(dev, MV_PORTREG(PHYCTL, i), reg);
658
659 /* Set port association vector */
660 sw16(dev, MV_PORTREG(ASSOC, i), (1 << i));
661
662 /* power up phys */
663 if (full && i < 5) {
664 mvsw61xx_mdio_write(dev, i, MII_MV_SPEC_CTRL,
665 MV_SPEC_MDI_CROSS_AUTO |
666 MV_SPEC_ENERGY_DETECT |
667 MV_SPEC_DOWNSHIFT_COUNTER);
668 mvsw61xx_mdio_write(dev, i, MII_BMCR, BMCR_RESET |
669 BMCR_ANENABLE | BMCR_FULLDPLX |
670 BMCR_SPEED1000);
671 }
672
673 /* enable SerDes if necessary */
674 if (full && i >= 5 && state->model == MV_IDENT_VALUE_6176) {
675 u16 sts = sr16(dev, MV_PORTREG(STATUS, i));
676 u16 mode = sts & MV_PORT_STATUS_CMODE_MASK;
677
678 if (mode == MV_PORT_STATUS_CMODE_100BASE_X ||
679 mode == MV_PORT_STATUS_CMODE_1000BASE_X ||
680 mode == MV_PORT_STATUS_CMODE_SGMII) {
681 mvsw61xx_enable_serdes(dev);
682 }
683 }
684 }
685
686 for (i = 0; i < dev->vlans; i++) {
687 state->vlans[i].port_based = false;
688 state->vlans[i].mask = 0;
689 state->vlans[i].vid = 0;
690 state->vlans[i].port_mode = 0;
691 state->vlans[i].port_sstate = 0;
692 }
693
694 state->vlan_enabled = 0;
695
696 mvsw61xx_update_state(dev);
697
698 /* Re-enable ports */
699 for (i = 0; i < dev->ports; i++) {
700 reg = sr16(dev, MV_PORTREG(CONTROL, i)) |
701 MV_PORTCTRL_FORWARDING;
702 sw16(dev, MV_PORTREG(CONTROL, i), reg);
703 }
704
705 return 0;
706 }
707
708 static int mvsw61xx_reset(struct switch_dev *dev)
709 {
710 return _mvsw61xx_reset(dev, false);
711 }
712
713 enum {
714 MVSW61XX_ENABLE_VLAN,
715 };
716
717 enum {
718 MVSW61XX_VLAN_PORT_BASED,
719 MVSW61XX_VLAN_ID,
720 };
721
722 enum {
723 MVSW61XX_PORT_MASK,
724 MVSW61XX_PORT_QMODE,
725 };
726
727 static const struct switch_attr mvsw61xx_global[] = {
728 [MVSW61XX_ENABLE_VLAN] = {
729 .id = MVSW61XX_ENABLE_VLAN,
730 .type = SWITCH_TYPE_INT,
731 .name = "enable_vlan",
732 .description = "Enable 802.1q VLAN support",
733 .get = mvsw61xx_get_enable_vlan,
734 .set = mvsw61xx_set_enable_vlan,
735 },
736 };
737
738 static const struct switch_attr mvsw61xx_vlan[] = {
739 [MVSW61XX_VLAN_PORT_BASED] = {
740 .id = MVSW61XX_VLAN_PORT_BASED,
741 .type = SWITCH_TYPE_INT,
742 .name = "port_based",
743 .description = "Use port-based (non-802.1q) VLAN only",
744 .get = mvsw61xx_get_vlan_port_based,
745 .set = mvsw61xx_set_vlan_port_based,
746 },
747 [MVSW61XX_VLAN_ID] = {
748 .id = MVSW61XX_VLAN_ID,
749 .type = SWITCH_TYPE_INT,
750 .name = "vid",
751 .description = "Get/set VLAN ID",
752 .get = mvsw61xx_get_vid,
753 .set = mvsw61xx_set_vid,
754 },
755 };
756
757 static const struct switch_attr mvsw61xx_port[] = {
758 [MVSW61XX_PORT_MASK] = {
759 .id = MVSW61XX_PORT_MASK,
760 .type = SWITCH_TYPE_STRING,
761 .description = "Port-based VLAN mask",
762 .name = "mask",
763 .get = mvsw61xx_get_port_mask,
764 .set = NULL,
765 },
766 [MVSW61XX_PORT_QMODE] = {
767 .id = MVSW61XX_PORT_QMODE,
768 .type = SWITCH_TYPE_INT,
769 .description = "802.1q mode: 0=off/1=fallback/2=check/3=secure",
770 .name = "qmode",
771 .get = mvsw61xx_get_port_qmode,
772 .set = mvsw61xx_set_port_qmode,
773 },
774 };
775
776 static const struct switch_dev_ops mvsw61xx_ops = {
777 .attr_global = {
778 .attr = mvsw61xx_global,
779 .n_attr = ARRAY_SIZE(mvsw61xx_global),
780 },
781 .attr_vlan = {
782 .attr = mvsw61xx_vlan,
783 .n_attr = ARRAY_SIZE(mvsw61xx_vlan),
784 },
785 .attr_port = {
786 .attr = mvsw61xx_port,
787 .n_attr = ARRAY_SIZE(mvsw61xx_port),
788 },
789 .get_port_link = mvsw61xx_get_port_link,
790 .get_port_pvid = mvsw61xx_get_port_pvid,
791 .set_port_pvid = mvsw61xx_set_port_pvid,
792 .get_vlan_ports = mvsw61xx_get_vlan_ports,
793 .set_vlan_ports = mvsw61xx_set_vlan_ports,
794 .apply_config = mvsw61xx_apply,
795 .reset_switch = mvsw61xx_reset,
796 };
797
798 /* end swconfig stuff */
799
800 static int mvsw61xx_probe(struct platform_device *pdev)
801 {
802 struct mvsw61xx_state *state;
803 struct device_node *np = pdev->dev.of_node;
804 struct device_node *mdio;
805 char *model_str;
806 u32 val;
807 int err;
808
809 state = kzalloc(sizeof(*state), GFP_KERNEL);
810 if (!state)
811 return -ENOMEM;
812
813 mdio = of_parse_phandle(np, "mii-bus", 0);
814 if (!mdio) {
815 dev_err(&pdev->dev, "Couldn't get MII bus handle\n");
816 err = -ENODEV;
817 goto out_err;
818 }
819
820 state->bus = of_mdio_find_bus(mdio);
821 if (!state->bus) {
822 dev_err(&pdev->dev, "Couldn't find MII bus from handle\n");
823 err = -ENODEV;
824 goto out_err;
825 }
826
827 state->is_indirect = of_property_read_bool(np, "is-indirect");
828
829 if (state->is_indirect) {
830 if (of_property_read_u32(np, "reg", &val)) {
831 dev_err(&pdev->dev, "Switch address not specified\n");
832 err = -ENODEV;
833 goto out_err;
834 }
835
836 state->base_addr = val;
837 } else {
838 state->base_addr = MV_BASE;
839 }
840
841 state->model = r16(state->bus, state->is_indirect, state->base_addr,
842 MV_PORTREG(IDENT, 0)) & MV_IDENT_MASK;
843
844 switch(state->model) {
845 case MV_IDENT_VALUE_6171:
846 model_str = MV_IDENT_STR_6171;
847 break;
848 case MV_IDENT_VALUE_6172:
849 model_str = MV_IDENT_STR_6172;
850 break;
851 case MV_IDENT_VALUE_6176:
852 model_str = MV_IDENT_STR_6176;
853 break;
854 case MV_IDENT_VALUE_6352:
855 model_str = MV_IDENT_STR_6352;
856 break;
857 default:
858 dev_err(&pdev->dev, "No compatible switch found at 0x%02x\n",
859 state->base_addr);
860 err = -ENODEV;
861 goto out_err;
862 }
863
864 platform_set_drvdata(pdev, state);
865 dev_info(&pdev->dev, "Found %s at %s:%02x\n", model_str,
866 state->bus->id, state->base_addr);
867
868 dev_info(&pdev->dev, "Using %sdirect addressing\n",
869 (state->is_indirect ? "in" : ""));
870
871 if (of_property_read_u32(np, "cpu-port-0", &val)) {
872 dev_err(&pdev->dev, "CPU port not set\n");
873 err = -ENODEV;
874 goto out_err;
875 }
876
877 state->cpu_port0 = val;
878
879 if (!of_property_read_u32(np, "cpu-port-1", &val))
880 state->cpu_port1 = val;
881 else
882 state->cpu_port1 = -1;
883
884 state->dev.vlans = MV_VLANS;
885 state->dev.cpu_port = state->cpu_port0;
886 state->dev.ports = MV_PORTS;
887 state->dev.name = model_str;
888 state->dev.ops = &mvsw61xx_ops;
889 state->dev.alias = dev_name(&pdev->dev);
890
891 _mvsw61xx_reset(&state->dev, true);
892
893 err = register_switch(&state->dev, NULL);
894 if (err < 0)
895 goto out_err;
896
897 state->registered = true;
898
899 return 0;
900 out_err:
901 kfree(state);
902 return err;
903 }
904
905 static int
906 mvsw61xx_remove(struct platform_device *pdev)
907 {
908 struct mvsw61xx_state *state = platform_get_drvdata(pdev);
909
910 if (state->registered)
911 unregister_switch(&state->dev);
912
913 kfree(state);
914
915 return 0;
916 }
917
918 static const struct of_device_id mvsw61xx_match[] = {
919 { .compatible = "marvell,88e6171" },
920 { .compatible = "marvell,88e6172" },
921 { .compatible = "marvell,88e6176" },
922 { .compatible = "marvell,88e6352" },
923 { }
924 };
925 MODULE_DEVICE_TABLE(of, mvsw61xx_match);
926
927 static struct platform_driver mvsw61xx_driver = {
928 .probe = mvsw61xx_probe,
929 .remove = mvsw61xx_remove,
930 .driver = {
931 .name = "mvsw61xx",
932 .of_match_table = of_match_ptr(mvsw61xx_match),
933 .owner = THIS_MODULE,
934 },
935 };
936
937 static int __init mvsw61xx_module_init(void)
938 {
939 return platform_driver_register(&mvsw61xx_driver);
940 }
941 late_initcall(mvsw61xx_module_init);
942
943 static void __exit mvsw61xx_module_exit(void)
944 {
945 platform_driver_unregister(&mvsw61xx_driver);
946 }
947 module_exit(mvsw61xx_module_exit);
OpenWrt Source Repository